
Vigilance (Attacking doesn't cause this creature to tap.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)
At the beginning of your upkeep, if you have 40 or more life, you win the game.
Felidar Sovereign has 8 printings, first in Zendikar (2009). EDHREC ranks it #1,620 among Commander cards. It appears most in Oloro, Ageless Ascetic decks (10,946 on EDHREC). 1 public deck on TCG runs it. It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.